1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
//
// NSString+Additions.m
// Cardinal
//
// Created by Cory Smith on 10-03-28.
// Copyright 2010 Assn. All rights reserved.
//
#import "NSString+Additions.h"
#import <CommonCrypto/CommonDigest.h>
@implementation NSString (md5)
+ (NSString *) md5:(NSString *)str {
const char *cStr = [str UTF8String];
unsigned char result[16];
CC_MD5( cStr, strlen(cStr), result );
return [NSString stringWithFormat:
@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
result[8], result[9], result[10], result[11],
result[12], result[13], result[14], result[15]
];
}
@end
@implementation NSString (Assn)
- (NSString *)trim {
return [self stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
}
- (BOOL)isEmpty {
return [[self trim] isEqualToString:@""];
}
- (BOOL)endsWith:(NSString *)ending {
int indexToCheck = [self length] - [ending length];
if(indexToCheck >= 0)
return [[self substringFromIndex:indexToCheck] isEqualToString:ending];
return NO;
}
- (BOOL)startsWith:(NSString *)starting {
if([starting isEmpty] || [starting length] > self.length)
return NO;
return [[self substringToIndex:[starting length]] isEqualToString:starting];
}
- (NSString *)replace:(NSString *)find with:(NSString *)replacement {
return [self stringByReplacingOccurrencesOfString:find withString:replacement];
}
- (NSString *)replaceAll:(NSArray *)keys with:(NSArray *)values {
NSMutableString *s = [NSMutableString stringWithString:self];
for (int i = 0; i < keys.count; i++) {
[s replaceOccurrencesOfString:[keys objectAtIndex:i]
withString:[values objectAtIndex:i]
options:NSLiteralSearch
range:NSMakeRange(0, [s length])];
}
return s;
}
- (BOOL)contains:(NSString *)text {
NSRange range = [[self lowercaseString] rangeOfString:[text lowercaseString]];
return range.location != NSNotFound;
}
- (NSString *)urlEncode
{
NSString *result = (__bridge NSString *) CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (__bridge CFStringRef)self, NULL, CFSTR(":/?#[]@!$&’()*+,;="), kCFStringEncodingUTF8);
return result;
}
- (NSString *)stringWithNewLinesAsBRs {
// Strange New lines:
// Next Line, U+0085
// Form Feed, U+000C
// Line Separator, U+2028
// Paragraph Separator, U+2029
// Scanner
NSScanner *scanner = [[NSScanner alloc] initWithString:self];
[scanner setCharactersToBeSkipped:nil];
NSMutableString *result = [[NSMutableString alloc] init];
NSString *temp;
NSCharacterSet *newLineCharacters = [NSCharacterSet characterSetWithCharactersInString:
[NSString stringWithFormat:@"\n\r"]];
// Scan
do {
// Get non new line characters
temp = nil;
[scanner scanUpToCharactersFromSet:newLineCharacters intoString:&temp];
if (temp) [result appendString:temp];
temp = nil;
// Add <br /> s
if ([scanner scanString:@"\r\n" intoString:nil]) {
// Combine \r\n into just 1 <br />
[result appendString:@"<br />"];
} else if ([scanner scanCharactersFromSet:newLineCharacters intoString:&temp]) {
// Scan other new line characters and add <br /> s
if (temp) {
for (NSUInteger i = 0; i < temp.length; i++) {
[result appendString:@"<br />"];
}
}
}
} while (![scanner isAtEnd]);
// Cleanup & return
NSString *retString = [NSString stringWithString:result];
// Return
return retString;
}
- (NSString *)sanitizeForHTMLOutput
{
NSString *result = self;
if (!result) { result = @""; }
result = [result trim];
result = [result stringWithNewLinesAsBRs];
return result;
}
+ (NSString *)generateUUID
{
CFUUIDRef newUniqueId = CFUUIDCreate(kCFAllocatorDefault);
NSString * uuidString = (__bridge_transfer NSString*)CFUUIDCreateString(kCFAllocatorDefault, newUniqueId);
CFRelease(newUniqueId);
return uuidString;
}
@end
|
